Photos: Celebs Now & Then

6. Tahj Mowry

As little brother to twins Tia & Tamera Mowry, Tahj stepped on the scene as Teddy on “Full House,” and then went on to star in his own show “Smart Guy” as a tiny boy genius who was already in high school. Today at 26, he’s got a role as Tucker Dobbs on the ABC Family’s sitcom “Baby Daddy.”